Typographical machine.



' (1E. MARLATT.

TYPOGRAPHICAL MACHINE- APPLICATION FILED JAN. 23. 1917.

Patented Apr. 16, 1918.

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GEORitE E. MARLATE, 0F PtASADEN'A, CALIFORNIA.

' TYPOGRAPHICAL MACHINE.

Specification of Letters Patent.

Patented Apr. 16, 11918.

- Application filed January 23, 1917. Serial No. 144,091.

To all whom it may concern.-

Be it known that I, GEORGE E. MARLATT, a citizen of the United States, residing at Pasadena, in the county of Los'Angeles and State of California, have invented new and useful Improvements in Typographical Machines, of which the following is a specification. 1

My invention relates to typographical machines of the linotype class and the primary object thereof is to provide certain automatic safety devices which may be controlled by and serve to control the opening of the vise frame.

It is a well known fact to operators of such machines, that it is unsafe to open the vise frame at certain stages of operation of the machine, while at other stages of operation, between and during the successive normal relations of the operating parts, the vise may be safely opened.

When the machine operating parts are in certain relative positions, if the vise is opened there is danger that the metal pump will operate and thus cause an uncontrolled flow of metal from the pot. At other relative positions of these parts there is danger of breakage or damage to certain of the parts, as for instance, to the vise closing connecting rod.

As stated, the vise may be safely opened at times, as for instance, when the first and second justification levers are in their normal or lowermost positions, and in this invention advantage is taken of this fact or condition for preventing the opening of the vise at other times, and also for causing the justification levers to serve as counterbalances for the weight of the vise when the same is being opened.

Referring to the drawings, in which similar characters of reference indicate the same parts throughout the specification and the several views of the drawing, Figure 1 is a side elevation of the lower portion of a machine with my improvements shown thereon; Fig. 2 is a plan of the same, and Fig. 3 is an enlarged view of the starting and stopping means.

In the drawings, 1 is the vise frame, 3 the pump for forcing the metal from the pot to the mold, 4: the metal pot and 5 is the vise closing connecting rod. The first justification lever 6 carries a roller 8 which is held a ainst and follows the irregulanperiphery 0% a cam 10 by means of a spring 9, for

causing the pivotal movement of the lever on ts fulcrum pin 11. for the purpose of ustifylng the line of matrices and spacebands, in the ordinary manner.

The second justification lever 7 carries a similar roller 12,, which is spring actuated and operates in contact with a cam 13, this roller and the lever 7 being similar in funct10n and operation to the lever 6 and its roller.

In order to carry out the objects of my lnventlon, I provide the first justification lever 6 with a lug 14, and the vise frame 1 is provided with an arm 15 which carries an extended pin 16. When the lever 6 0ccupies a position above its normal position, as shown in Fig. 1, the pin 16 on the arm 15 of the frame 1 engages the rear edge of the vertically extended lug 1 1- and prevents the opening of the vise, aswill be readily apparent. When the vise is opened, the pin 16 will engage the inclined upper edge of the lug 14. thus forcing the lever 6 downwardly to a point'slightly below its normal position and against the tension of a spring 9 which is common to all machines of this class, and the lever thus serves as a support for the weight of the vise as it is lowered pivotally about its fulcrum pin 17.

The second justification lever 7 ha a lug 18 which is adapted to be engaged by a pin 19 carried by an arm 20 on the vise, and the function and operation of these elements are similar to those described in connection with the lever 6.

In the operation of machines of this class,

it is necessary to close the starting and stopping handle 21 before the vise is opened, as otherwise, there would be danger resulting from the operation of the machine parts during the time the vise is lowered. Heretofore it has been necessary to manually close the handle 21 before the opening of the vise, but in this invention I provide means for automatically closing the same, and for this purpose a lug 22 is provided on the vise frame 1 and an extension 23 is formed on the handle 21, so that when the vise is opened, the lug 22 will engage the extension 23 and force the handle 21 inwardly for a suflicient distance to effect the movement of a connecting link 24 which is attached to the handle 21 at one end and to the starting and stopping rod 25 at the other end, across its dead center and over the center of the rod 25, by means of a clutch sprin 26. When the handle 21 is thus move over its dead center, it is further moved by the action of the spring 26 and a clearance is thus provided between the lug 22 and the handle extension 23, so that when the vise is raised to normal position the lug 22 will not engage the extension 23, and necessitate the manual withdrawal of the handle 21 before the machine is again operative.

Having thus described my invention, what ll claim is:

1. A typographical machine including the vise frame, the justification levers, and means for operably connecting said vise frame and said levers and means for locking said vise frame against movement at improper times.

2. A typographicalmachine including the vise frame movable to and from operating position, the justification levers for expanding the line of matrices carried by said vise frame, and co-acting means on said frame and said levers for locking said frame against movement at improper times.

3. A typographical machine including the vise frame movable to and from operating osition, the justification levers for expandmg the line frame, and means operable by said justification -levers for locking said vise frame against operation at improper times.

l. A typographical machine including the movable vise frame, the first and second justification levers for expanding the line of matrices carried by said vise frame, and

means on each of said levers co-acting with separate means on said vise frame for locking said frame against movement at improper times.

5. A typographical machine including the movable vise frame, the justification levers for expanding the line of matrices, the justi- 4 fication springs for maintaining said levers in operating position, and means for utiliz ing said springs for counterbalancmg the weight of said vise frame when the same is moved out of operating position.

6. A typographical machine including the movable vise frame, the justification levers of matrices carried by said vise raeaeee for expanding the line of matrices, the justification cams for operating said levers, the

springs for maintaining the engagement between said cams and said levers, means for ping lever for regulating the operation of the machine, and means on said vise frame for operating said lever to an extreme position of safety when said vise frame is opened.

9. A typographical machine including the movable vise frame, starting and stopping means for regulating the operation of the machine, justification means, and means associated therewith for preventing the opening of the vise frame at improper times.

10. A typographical machine including the movable vise frame, the starting and stopping lever for regulating the operation of the machine, means on said vise frame for operating said lever, the justification levers for expanding the line of matrices, means on said vise frame and said levers for preventing the opening of said frame at improper times, the justification springs for maintaining said levers in operating position, and means for utilizing said springs for counterbalancing said vise frame when the same is opened.

, Signed at Los Angeles, in the county of Los Angeles, and State of California, this 17th day of January, 1917.

GEORGE E. MARLATT.

Witnesses:

LUTHER lL. MACK, O. 0. Amsmen'r. 

